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What is something other people seem to grasp easily that eludes you? (lemmy.world)
submitted 3 weeks ago by to c/asklemmy@lemmy.world
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For me it's time signatures in music. I grew up playing instruments, played in several orchestras, etc. But no matter how many times someone tries to explain time signatures to me, it makes no sense. I don't understand why people place such importance on it. To me, notes have a pitch and a duration, maybe some dynamics. That's it. I don't understand why people try to needlessly complicate it. It doesn't give you anything.

My wife will hear a song and go "Oh neat, it's in 5/8." And I'm like "How tf do you know that, and why does it matter?"

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[–] 1 point 3 weeks ago

About Casting, at least in the granddaddy of programming languages, C, just meant interpreting the value of a variable as if it was a different kind of variable. Important detail is that variables are actually just memory locations and the number of bytes that conform it. So if you have a variable x of type string that holds the letter A, and a variable y also of type string with the letter B, if you do

x+y

You get 'AB'. But if you cast the variables like this:

(int)x + (int)y

You get 131

To put it in words as you asked, you are saying "please add the values located at memory locations x and y, but treat the values found there as if they were numbers, and not the ASCII codes for letters (which is what I had originally told you was there)".

It's been almost 30 years since the last time I actually used this, so I might be recalling something wrong.

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